Jack Up Offshore Crew and Job Description

Jackup Mobile drilling rig (MODU) used in offshore drilling. Jackup rigs stand on the ocean floor with their hull and drilling equipment elevated above the water on connected leg supports. Jackup rigs are generally preferred over other rig types in water depths of 400 feet or less, primarily because jackup rigs provide a more stable drilling platform with above water blowout prevention equipment.

Jackup offshore Crews work 12 hours shifts and ussually change at 6:00 AM/PM, individuals with no onboard releif are on call 24 hours per day but ussually only work 12 hours per day. 

Following Jackup Full crews positions and job responsibilites. 

1. Offshore Installation Manage (OIM) 

OIM in charge of all activities and legally responsible for the rig. 

2. Senior/Day Tool Pusher 

Position in charge of drilling activities and directing personnel that support the hole making activities on the 

rig.

3. Night Tool Pusher

Similar duties to day tool pusher but works at night and ussually subordidnate to the Day toolpusher.

4. Driller, 4 on/off

In charge of the drill floor, drill crews, well progress and reports to the Tool Pushers.

5. Assistan Drillers, 4 on/off

Assist Driller, in charge of drill floor when driller is not present, assists driller in his duties. 

6. Derrickman, 4 on/off

In charge on trips in and out the well racks pipe in the derrick at the monkey board level and also assists 

with mud solids equipment and monitoring mud condition. 

7. Floorman, 16 on/off

In charge supervised by the driller and works primarily on the drill floor, substructure and with drilling 

tools. 

8. Crane Operator, 4 on/off

In charge of operates the rig's cranes and supervises the roustabout crews. 

9. Roustabout, 8 on/off

In charge of performs manual labor such as painting, unlloading boats, carrying supplies to store rooms 

and other manual labor under the direction of the Crane operators.

10. Mechanic, 4 on/off

In charge of all rig mechanical equipment but particularly engines. 

11. Assistant Mechanic, 2 on/off

In charge of splits tours between two hitches on mechanics. Aids in mechanic's work and is in training. 

12. Motermen, 4 on/off

In charge primary duty is to monitor and attend the engine room. reportes to the mechanic. 

13. Electrician/Electronics Technician, 4 on/off

In charge of all rig electrical and electronic equipment and their maintenance. 

14. Asisstant Electrician, 2 on/off

In charge of splits tours between two hitches of electricians. aids in electrician work and is in training, 

reports to lead electrician. 

15. Welder, on/off 2, 

In charge of welds plate and peipe as necessary for drilling contractor and operator. 

16. Materialsmen, on/off 4

In charge handles materials, data entry for maintenance, purchasing, inventory, etc. 

17. Communications, on/off 2.

In charge of communications. 

18. Barge Engineer, on/off 2

In charge of the marine equipment and its oepration, in charge during rig moves and jacking. generally the 

maintenance crews and specialist report to the barg engineer. 

19. Catering/Camp Boss, on/off 2

In charge of hotel function on rig such as food, laundry, etc. 

20. Cooks, on/off 4.

In charge of preparing food for crews. 

21. Galley Hands, on/off 20

In charge of helps with food, cleans rooms, laundry etc. under the camp boss. 

Total for basic complement 98 crews.

Image courtesy of Maersk Drilling 

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Offshore Oil Rig Hierarchy.

Offshore Drilling Contractor has developed comprehensive management system, the most senior person on the Drilling Rigs is Offshroe Installation Manager (OIM) who is by the law, the master or captain of the vessel. The OIM is person who responsible for all departements, including:

• 1. Maintennance
• 2. Marine
• 3. Drilling 
• 4. Rig Administration

1. Maintenance

The Maintenance section is responsible for the maintenance and repairing of the machinery and drilling equipment on board. The section also overlooks all electrical operations on board and assists with installations of third party equipment.

Maintenance Crews:

• Chief Mechanic
• Chief Electrician
• Mechanic
• Electrician
• Assistance Mechanic
• Assistance Electricrian
• 2nd Engineer (Drilling Ship)
• 3rd Engineer (Drilling Ship)
• Motorman
• Welder
• Chief Painter
• Painter

2. Marine

The Marine section handles rig moves and operates the Dynamic Positioning system. It is also responsible for crane, anchor, ballast and deck operations as well as all control room activities, fabric maintenance and helicopter landings and takeoffs.

Marine Crews:

• Barge Master (expat included)
• Assistant Barge Master
• Deck Supervisor/Deck Pusher
• Crane Operator
• Assistan Crane Operator
• Lead Roustabout
• Roustabout
• 2nd Officer (Drilling Ship)
• 3rd Officer (Drilling Ship)
• AB Seaman (Drilling Ship)

3. Drilling

The Drilling section is responsible for all work related to the drilling operations itself; running and cementing of casings, tripping operations and controlling the actual drilling operation by using cyber equipment.

Drilling Crews: 

• Geologist
• Directional Driller
• Drilling Superintedent
• Rig Manager
• Senior Tool Pusher/Night tour Pusher
• Rig Mechanic
• Rig Electrician
• Driller/Assistan Driller
• Derrickhand
• Floor Man

4. Rig Administration

The Administration section handles all the practicalities that make the rig function as a workplace. This includes arranging transport to and from the rig, ensuring emergency preparedness and treating personnel when experiencing health issues.

Rig Officers:

• Safety Officer
• HSE assistan
• Medic
• Radio Operator
• Interpreter
• Material Man
• Store Keeper
• Catering Personnel
• Camp Boss

Image courtesy of Maersk Drilling 

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Oilfield Terminology (Oilfield Jargon).

Oilfield Terminology (Oilfield Jargon). 

Words or pharases describing profesions, equipment and procedures in the oil and gas industry:

Bell nipple: An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of the well.

Big bear: A big bear is a hitch (see hitch) that lasts a minimum of 50 str

Bell to Bell : Shipyard term for working on jobs solidly from start to finish and being unable to finish early, even if said jobs are already completed. This is more ussual on onshore than offshore. 

Billy Pugh: Older method of transporting crews via crane and carriage to boat/platform. 

Blowout: A sudden, uncontrolled release of underground pressure from the well.

Cat's Head: Part of derricks mechanical works that, historically, would allow roughnecks to tighten and tourque up drill pipe using chain and rope. 

Choppers Eve: The day previous to when the copper arrives. 

Dog House: Area within the derrick where the toolpusher, driller and other high rangking types plan and carry out drilling operations. 

Donut: Abessin equipment installed as an escape system offshore. 

Drill string: A column, or string, of pipe that transmits drilling fluid (via the mud pumps) and torque (via the Kelly drive or top drive) to the drill bit.

Fish: Any object that has been unintentionally dropped and lost down the wellbore. Fishing is the act of using specialized tools to retrieve a fish.

Monkey Board: Platform on which derrickman works during the same a trip is being made. or reffered as the tubing board. 

Hitch: Rig employees refer to their work period as a 'hitch.' A common hitch is 20 days on, followed by 10 days off. Typically, two crews will be on and each crew will spend one week working 7am-7pm and the following week 7pm-7am. Or, crews may do a full two weeks of 7am-7pm and then, upon returning after their 10 days off, will work the next two weeks 7pm-7am (the third rig crew being on their 10 days off). Some rigs may operate four crews; these crews typically work eight hours shifts.

Intelligent well: An oil or gas well equipped with monitoring equipment and completion components that allow for automatic or remote optimization of production.

Kick: An intrusion of pressurized gas into the wellbore that causes drilling fluid to be displaced. It can be the precursor to a blowout.

Kickoff: A planned deviation from vertical, executed at the bottom of the wellbore.

Kill: The act of stopping a well from flowing.

Pig: A device inserted into a pipeline for cleaning purposes. The act of using a pig is called pigging.

OIM: Offshore Installation Manager. 

Sky Wakers: Rope Acces workers preferred nickname.

Well logging: The practice of making a detailed record (well log) of the geologic formations penetrated by a borehole. Also known as borehole logging. Wireline logging is the practice of measuring formation properties using electrically powered instruments to infer properties and make decisions about drilling and production operations.

Worm: An inexperienced oilfield worker that is not yet a "hand".

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Rope Acces Jobs And Salary

Rope Acces is one of  daring proffesions with specialized skills which not everyone can do the work. To be a rope acces you must have excellent physicall conditions. Rope access is a form of work positioning, initially developed from techniques used in climbing and caving, which applies practical ropework to allow workers to access difficult-to-reach locations without the use of scaffolding, cradles or an aerial work platform.

Rope access technicians descend, ascend, and traverse ropes for access and work while suspended by their harness. Sometimes a work seat may be used. The support of the rope is intended to eliminate the likelihood of a fall altogether, but a back-up fall arrest system is used in case of the unlikely failure of the primary means of support. This redundancy system is usually achieved by using two ropes - a working line and a safety line.

Currently the rope access industry is growing quickly, as is the pool of certified rope access technicians. Finding an avenue into the industry can be competitive, especially for those that aren't bringing additional industry trade skills to the table. However, various entry-level positions available. Some of these include highrise window and wind turbine tower cleaning. Patience and tenacity are often required to find an initial opportunity.

Rope access jobs on offshore oil rigs

Some of rope access jobs available on the offshore oil rigs include, but are not limited to:

• Rope Access Welder
• Rope Access Plater
• Rope Access Supervisor
• Rope Access Geotechnical Supervisor
• Rope Access Technician
• Rope Access radiography technician

Rope access technician training

There are 4 levels of training for rope access technicians, from Rope Access 1 to Rope Access 3, and then Advanced Rope Access & Rescue. You may become Rope Access 1 Technician in just 5 days and get certificate of getting trained to perform certain basic missions under supervision of more experienced oil rig workers of the same trade.Another level of training is only for the technicians with experience of having worked at least during 500 hundred hours at heights. After at least another 1000 hours you qualify for Level 3 training.

Minimum Requirments of ideal rope acces, shall possess of experience and trade certifications:

• Rope Access L1, L2, L3 IRATA

• NDE certification would be an asset

• EVITA, LEEA or other Lifting Equipment Training/Certification would be an asset

• Member of the American Society for Non-destructive Testing

• Member of the Industrial Rope Access Trade Association

• Experience Working on Offshore Assets, Drilling and Production Facility

• Demonstrated ability to effectively perform assigned NDT Tasks

• Knowledge of NDT equipment

• Knowledge of ISO Certification

• Effective Written Communication Skills /Technical Report Writing

• Willingness to train in different inspection methods

Behavioral Competencies:  

As a Rope Access -  the following behavioral competencies are required to effectively deliver results: 

• Collaboration 

   Fosters open dialogue with all project parties, solicits feedback from others.

• Safety 

   Ability to identify work risks and maintain a work safe attitude

• Accountability 

  Takes personal responsibility and ownership, fulfills commitments and holds others accountable.

• Communicate effectively 

   Express ideas clearly and concisely; listen carefully and attentively to others' opinions and ideas: 

   share information and viewpoints openly and directly with others.

• Attention to Detail - Ability to accurately record and document information error free

Rope Acces Salary

Rope Acces salaries range widely based on location, work frequency, and overtime pay. According The Globe And Mail, there are three training levels for industrial rope access technicians, each with its own average hourly wage. Level one technicians typically earn between $25,000 and $60,000 a year, while level three technicians can make anywhere from $50,000 to $140,000 annually. Level two technicians typically fall somewhere in between, earning between $40,000 and $90,000.

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DRILL SHIP

The drillships is one of Mobile offshore drilling units (MODUs, pronounced "moe-dooz"). which popular in the late 1950's to the late 1960's. 

Drillships are differentiated from other offshore drilling units by their easy mobility. While semisubmersible rigs can also drill in deep waters, drillships are able to propel themselves from well to well and location to location, unlike semisubs, which must rely on an outside transport vessel to transfer them from place to place.

A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In most recent years the vessels are use in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems.

Drillships are specially built seagoing vessels that also drill in waters as deep as 12,000 feet. Drilling equipment is installed on the deck, with the derrick normally placed in the middle of the ship. The well is drilled through an opening (called a "moon pool") that extends to the water's surface below the derrick. 

Because of their cargo-carrying capacity and exceptional mobility, drillships are especially useful for drilling exploratory wells. Although they are not as stable as semisubmersibles in rough water, they can be moved from location to location much faster. They maintain their position through mooring or dynamic positioning systems.

The drillship can be used as a platform to carry out well maintenance or completion work such as casing and tubing installation, subsea tree installations and well capping. Drillships are often built to the design specification to meet the requirements set by the oil production company and/or investors.

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OFFSHORE CREWS

An Offshore Platform rig is a large structure with facilities to drill wells, to extract and process oil and natural gas, or to temporarily store product until it can be brought to shore for refining and marketing. In many cases, the platform contains facilities to house the workforce as well.

An Offshore drilling unit operate by professionals Crew and management system are often the real determining factor concerning MODU performance and safety. This is often overlooked during the flurry of cost analysis, equipment evaluation, operating expenses assessment, and number crunching during bid analysis and MODU selection. It is often said that the low bid does not always give the best performance. A complete “hard” (equipment) and “soft” (crew, management, and safety) analysis must be done to make the best decision.

These policies and procedures should be reinforced throughout the personnel hierarchy, from the chief executive officer to the roustabout on the rig, in order to have a successful and well-performing organization and rig operation.

The staffing and organization of a MODU vary with each drilling contractor, operator, and country, and are controlled by classification and registration requirements. The most senior person on the MODU is usually the offshore installation manager (OIM) who is, by law, the “master” or “captain” of the vessel. The OIM is responsible for all departments, including:

• Drilling
• Maintenance
• Marine
• Auxiliary services
• Safety

The following are personal who working in the offshore platform:

1. OIM (offshore installation manager);

2. Operations team leader (OTL);

3. Offshore operations engineer (OOE) who is the senior technical authority on the platform;

4. PSTL or operations coordinator for managing crew changes;

5. Dynamic positioning operator, navigation, ship or vessel maneuvering (MODU), station keeping, fire and     gas systems operations in the event of incident;

6. Automation systems specialist, to configure, maintain and troubleshoot the process control systems    (PCS), process safety systems, emergency support systems and vessel management systems;

7. Second mate to meet manning requirements of flag state, operates fast rescue craft, cargo operations, 8. Fire team leader;

9. Third mate to meet manning requirements of flag state, operate fast rescue craft, cargo operations, fire      team leader;

10. Ballast control operator to operate fire and gas systems;

11. Crane operators to operate the cranes for lifting cargo around the platform and between boats;

12. Scaffolders to rig up scaffolding for when it is required for workers to work at height;

13. Coxswains to maintain the lifeboats and manning them if necessary;

14. Control room operators, especially FPSO or production platforms;

15. Catering crew, including people tasked with performing essential functions such as cooking, laundry       and cleaning the accommodation;

16. Production techs to run the production plant;

17. Helicopter pilot(s) living on some platforms that have a helicopter based offshore and transporting      workers to other platforms or to shore on crew changes;

18. Maintenance technicians (instrument, electrical or mechanical).

19. Fully qualified medic.

20. Radio operator to operate all radio communications.

Incidental personnel

Drill crew will be on board if the installation is performing drilling operations. A drill crew will normally comprise:

1. Toolpusher
2. Driller
3. Roughnecks
4. Roustabouts
5. Company man
6. Mud engineer
7. Motorman
8. Derrickhand
9. Geologist
10. Welders and Welder Helpers

Well services crew will be on board for well work. The crew will normally comprise:

1. Well services supervisor
2. Wireline or coiled tubing operators
3. Pump operator
4. Pump hanger and ranger

References:

http://en.wikipedia.org/wiki/Oil_platform

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Top Subsea Offshore Construction Companies

Offshore construction includes foundations engineering, structural design, construction, and/or repair of offshore structures, both commercial and military. including:

• Subsea oil and gas developments
• Offshore platforms – fixed platforms, semi-submersibles, spars, tension leg platforms (TLPs), floating production storage and offloading (FPSOs).
• Floating oil and gas platforms – semi-submersibles, spars, TLPs, FPSOs.
• Offshore wind power
• Submarine pipelines

According to gnsolidcontroll, Following top Subsea offshore construction companies in the world:
1. Acergy - a seabed-to-surface engineering and construction contractor to the offshore oil and gas              industry worldwide.
2. Tidewater - operates the world's largest fleet serving the international offshore energy industry.
3.  Bergen Group - is a maritime industrial group with main focus on the offshore industry and specialized       vessels.
4.  Saipem S.p.A. - Offshore Construction - particularly in deepwater pipelay and field development - and        Offshore Drillin Aker Marine Contractors - floater and mooring installations, gravity structure                    installations, removal and Surf. Target areas: Europe, GoM and west Africa. Subsea7 - ROV operators,      installation, survey and positioning A2SEA - transport, installation and servicing of offshore wind farms      AF Decom Offshore - demolition and removal of oil installations
5.  DeepOcean AS - provision of high quality services within Inspection, Maintenance & Repair, Survey            and Construction Support and Subsea Decommissioning
6.  EZRA Holdings - an integrated offshore support solutions provider for the oil and gas industry Global          Industries Offshore, L.L.C - offshore construction and underwater diving services Island Offshore - a          fleet of advanced high     quality service and construction vessels NMA Maritime and Offshore                  Contractors BV - large offshore equipments by means of vessel Float-         On/Float-Off, Roll-              On/Roll-Off and Lift-On/Lift-Off operations Noordhoek - underwater contractor in all projects with            underwater activities.
7.  Petrofac Facilities Management - Engineering & Construction, Engineering & Construction Ventures,           Engineering Services, Offshore Engineering & Operations, Training, Production Solutions and Energy           Developments QCI Marine Offshore, LLC - turnkey marine construction company specializing in the           construction and renovation of living quarters
8.  Rosetti Marino SpA - design, procure and construct a wide range of fixed offshore platforms and                modular plants Sea Trucks Group - been providing marine services to the major oil and construction          companies in Nigeria, both offshore and inshore.
9.  Trico Marine - leading provider of marine support vessels to the offshore oil and gas industry DOF             Subsea UK - subsea services contractor, providing survey, IRM, construction support and      subsea            engineering
10. RBG Ltd - UK & International provider of Construction Support, Fabric Maintenance and Related                Services Subocean Limited - provide marine installation contractor services to market-leading                 customers

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The Top 18 Offshore Drilling Companies

Many of the best known companies that drill offshore are on this list of offshore drilling companies.

According to Technavio analysts, the top 18 companies in the Offshore Drilling industries in the world as follows:

1. "A top-tier oilfield service company with a century-long track record, Baker Hughes delivers solutions that help oil and gas operators make the most of their reservoirs. Our history of technology innovation is a cornerstone of our success. Local teams are supported by global centers of excellence where scientists push the boundaries of value-adding technology to find solutions for progressively more complex technical challenges."

 2. Ensco

"Ensco plc brings energy to the world as a global provider of offshore drilling services to the petroleum industry. For more than 25 years, the company has focused on operating safely and going beyond customer expectations. Ensco is ranked first in total customer satisfaction with top honors in eight of 14 categories in the latest annual survey by EnergyPoint Research. Operating one of the newest ultra-deepwater rig fleets and the largest premium jackup fleet, Ensco has a major presence in the most strategic offshore basins across six continents."

 3. Halliburton

“Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry. With more than 75,000 employees, representing 140 nationalities in approximately 80 countries, the company serves the upstream oil and gas industry throughout the lifecycle of the reservoir – from locating hydrocarbons and managing geological data, to drilling and formation evaluation, well construction and completion, and optimizing production through the life of the field.”

4. Seadrill

"Seadrill is a leading offshore deepwater drilling company, aiming to be our customers' most important partner in making oil and gas available in a safe and cost-effective manner. The company operates a versatile fleet of 69 units that comprises drillships, jack-up rigs, semi-submersible rigs and tender rigs for operations in shallow to ultra-deepwater areas in harsh and benign environments."

5. Transocean

"Transocean is a leading international provider of offshore contract drilling services for oil and gas wells. The company specializes in technically demanding sectors of the global offshore drilling business with a particular focus on deepwater and harsh environment drilling services, and believes that it operates one of the most versatile offshore drilling fleets in the world. Transocean operates a fleet of 79 mobile offshore drilling units consisting of 46 high-specification floaters, 22 midwater floaters and 11 high-specification jackups. In addition, the company has nine ultra-deepwater drillships and five high-specification jackups under construction.”

6. Weatherford

"Weatherford (NYSE/Euronext Paris/SIX:WFT) is one of the largest global providers of products and services that span the drilling, evaluation, completion, production and intervention cycles of oil and natural gas wells. Weatherford is a new breed of service company—one that can provide the industry with extended products and services, more efficient operations, more powerful research and development capabilities and greater geographic diversity."

7. Atwood Oceanics

"Atwood  Oceanics is a leading offshore  drilling company engaged in the drilling and  completion of exploration and development wells  for the global oil and gas industry.   The company currently owns 13 mobile  offshore drilling units and is constructing  three ultra-deepwater drillships. The company was founded in 1968 and  is headquartered in Houston, Texas.   Atwood Oceanics, Inc. common stock is traded on the New York Stock Exchange under the symbol "ATW."

8. COSL

"China Oilfield Services Limited (COSL) is an integrated oilfield service solution provider with nearly 50 years of experience in offshore operation. With its four major business segments of geophysical services, drilling services, well services and marine & transportation services covering the exploration, development and production phases of oil and gas industry, COSL is an all-round offshore oilfield service company with integrated functions and bundled service chain in China and even in the world. COSL possesses the largest fleet of offshore oilfield services facilities in China."

9. Diamond Offshore

"Diamond Offshore Drilling, Inc.  is a leader in offshore drilling, providing contract drilling services to the energy industry around the globe with a total fleet of 45 offshore drilling rigs, including seven rigs under construction.  Diamond Offshore's fleet consists of 33 semisubmersibles, three of which are under construction, five dynamically positioned drillships, four of which are under construction, and seven jack-ups."

10. Fred Olsen Energy

"The offshore fleet of Fred. Olsen Energy ASA with subsidiaries (the Group) consists of two ultra/deepwater units and five mid-water semi-submersible drilling rigs in addition to one tender support vessel and one accommodation unit. Three of the semi-submersible drilling rigs are operating on the Norwegian Continental Shelf. In addition, one ultra deepwater drillship was delivered end of February 2014. The Group has one other newbuild under construction, an ultra deepwater semi submersible for harsh environment scheduled to be delivered in 3Q 2015."

 11. Gyrodata

"Gyrodata's precision survey services have had a major impact on drilling and production operations. High accuracy surveys assure precise wellbore targeting and reservoir delineation, and they prevent costly problems such as missed objectives and wellbore collisions in multiwell structures. Today, Gyrodata is the leading supplier of precision wellbore survey services as well as industry leading directional drilling technology and services to the energy, mining, environmental and construction industries."

12. KCA Deutag

"KCA DEUTAG is one of the largest international drilling contractors. The company employs 8,000 staff in more than 22 countries and it had revenue in 2012 of US$1.7 billion. KCA DEUTAG is currently the drilling operations contractor on 33 offshore platforms worldwide and owns and operates a fleet of mobile offshore drilling units consisting of 2 jack-ups and 3 self erecting tender barges. The company also owns and operates a fleet of more than 60 land drilling rigs."

13. Maersk Drilling

"Maersk Drilling has an ambition of becoming a significant contributor to the A.P. Moller - Maersk Group with a profit (NOPAT) of USD 1bn by 2018, while conducting incident free operations. In addition to the three drillships and four jack-up rigs in order, the modern fleet counts 17 drilling rigs including deepwater semi-submersibles and high-end jack-up rigs. Maersk Drilling employs an international staff of 4,000 people and generated a profit of USD 528m in 2013."

14. Nabors

"Nabors owns and operates the world's largest land-based drilling rig fleet and has one of the largest completion services and workover and well servicing rig fleets in North America. The company is a leading provider of offshore platform workover and drilling rigs in the U.S. and multiple international markets. Nabors provides innovative drilling technology and equipment, directional drilling and comprehensive oilfield services in most of the significant oil and gas markets in the world."

15. Noble

"Noble is a leading offshore drilling contractor for the oil and gas industry. Noble performs, through its subsidiaries, contract drilling services with a fleet of 77 offshore drilling units (including two ultra-deepwater drillships and four high-specification jackup drilling rigs currently under construction), located worldwide, including in the U.S. Gulf of Mexico and Alaska, Mexico, Brazil, the North Sea, the Mediterranean, West Africa, the Middle East, India, Malaysia and Australia."

16.  Rowan Companies

"Rowan Companies is a global provider of offshore contract drilling services, focused on operating safely and efficiently to exceed customer expectations.  We are a market leader with one of the youngest fleets in our industry, including four ultra-deepwater drillships, three of which are currently under construction, and 30 jack-up rigs, 19 of which are rated high-specification.  Our mission is to be recognized by our customers as the most efficient and capable provider of demanding contract drilling services."

 17. Scientific Drilling

"Scientific Drilling International (SDI) is an independent directional drilling and wellbore navigation, surveying and logging service company serving customers worldwide.The company serves a diverse range of customers in all energy sectors. Besides participating in some of the most complex conventional and unconventional oil and gas projects in the world, SDI also has extensive experience in working on geothermal wells and drilling horizontal laterals in coalbed methane reservoirs."

18. Superior Energy Services

"Superior Energy Services offers drilling-related and production related solutions to energy producers. We provide a diverse set of products and services in select global markets that add value to our customers' operations with an emphasis on quality, integrity and safe operations."

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